Journal Article

The Chloroplast Genome of <i>Pellia endiviifolia</i>: Gene Content, RNA-Editing Pattern, and the Origin of Chloroplast Editing

Christopher Grosche, Helena T. Funk, Uwe G. Maier and Stefan Zauner

in Genome Biology and Evolution

Published on behalf of Society for Molecular Biology and Evolution

Volume 4, issue 12, pages 1349-1357
Published in print January 2012 |
Published online December 2012 | e-ISSN: 1759-6653 | DOI:

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RNA editing is a post-transcriptional process that can act upon transcripts from mitochondrial, nuclear, and chloroplast genomes. In chloroplasts, single-nucleotide conversions in mRNAs via RNA editing occur at different frequencies across the plant kingdom. These range from several hundred edited sites in some mosses and ferns to lower frequencies in seed plants and the complete lack of RNA editing in the liverwort Marchantia polymorpha. Here, we report the sequence and edited sites of the chloroplast genome from the liverwort Pellia endiviifolia. The type and frequency of chloroplast RNA editing display a pattern highly similar to that in seed plants. Analyses of the C to U conversions and the genomic context in which the editing sites are embedded provide evidence in favor of the hypothesis that chloroplast RNA editing evolved to compensate mutations in the first land plants.

Keywords: liverwort; plastid; RNA editing; evolution; land plants

Journal Article.  4501 words.  Illustrated.

Subjects: Bioinformatics and Computational Biology ; Evolutionary Biology ; Genetics and Genomics

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